Showing posts with label sheep. Show all posts
Showing posts with label sheep. Show all posts

Monday, 30 September 2024

Freemartin

 

Freemartin

A child I taught, and who is now a veterinary surgeon, lived on a smallholding and had a house cow. She was very excited one day to tell me that the cow had given birth to twins because that was very unusual.

If the twins are both female, the heifers will develop as normal females. If the calf twins are a male and a female, the female may develop as a freemartin.

A freemartin is an infertile heifer. It is often more aggressive than its female counterparts and displays masculine characteristics. The condition occurs because male and female twins share blood circulation through their placentas, and male hormones are transferred from male to female. In a dairy herd, this is not a happy outcome, as the heifer has underdeveloped ovaries, so will never calve and produce milk.

Twin births occur in 0.5% to 2% of all bovine pregnancies. Although not all mixed twin calves will result in freemartins, it does occur in 90% of all such pregnancies.

Freemartins occur in other species and have been recorded in sheep, pigs, and goats, where the incidence in each species is about 1%. They have been recorded and discussed since 27 BCE.

In Aldoux Huxley's grim dystopian novel, Brave New World, babies are created in artificial wombs and it is a matter of shame and scandal to conceive a child naturally within the World State. A freemartin is a female foetus exposed to male hormones to render her infertile. The practice is part of the government's plan to control the population and only 30% of the female population are not freemartins.

Thursday, 23 June 2011

Thursday Tales #65 Ravensmoor Farm

The challenge at Thursday Tales is to respond to an illustration with a story no less than 55 words and no more than 777. To read other stories, please click here.

'Guide' by Pierrick Martinez

Jonah Arkwright had loved the moors all his life. He had farmed sheep on the uplands since he was a youth, taking over the smallholding from his father when the old man became too feeble to struggle on. Through the seasons he cared for his flock, setting out each morning with a faithful sheepdog at his heels and two more running ahead.

Unlike other farmers he never worried about ravens attacking his flock. He knew they only resorted to that through hunger and so, like his father before him, he put out food daily for the birds. A pair of ravens, probably about sixty years old, appeared each day at the feeding station and Jonah took that as a sign that all was well. On the rare occasions that the birds absented themselves he knew there was a reason and always it was because of a problem with the sheep. Once he had found a pregnant ewe tumbled into a ditch and unable to extricate herself. The ravens were standing sentry over her. The next day Jonah made sure they had extra rations – the fat from the ham and some fruit as well as the bread they so enjoyed. Another time the ravens had alerted him to a lamb abandoned by its mother. Jonah respected the ravens and they repaid him well.

Now he too had grown old and his son was taking on more of the work. The flock had multiplied and Alfred was a caring shepherd, having learnt from his father how to manage the tough moorland sheep. Jonah still went out with his remaining elderly dog every day, leaning on his crook as he negotiated the steep pathways.

The weather on the moors was often capricious; a fine sunny morning would give way to a sudden thick mist coming down from the tops. Jonah was out one day when the fog descended but Alfred was not unduly concerned when his father did not return for his midday meal. As the afternoon wore on he was surprised to see the ravens. They had fed handsomely that morning and did not usually return until the next day but now they were flying round and calling agitatedly. Eliza, Alfred’s wife, said, ‘They’re telling us something. Look how they fly towards us and then away, as if they want us to follow them.’

She fetched her shawl and a lantern and Alfred whistled the rest of the dogs to him and together they set off up the hill. The wind was screaming in their ears and although the fog had fled, the daylight was waning. One false step on the rough ground could lead to a broken ankle or worse. The ravens circled them, calling all the time, then flying a short distance away and back. Eventually they landed on a tussock of rough grass, bobbing their heads and cawing softly, gently. As they reached the spot Alfred and Eliza saw Jonah lying on the ground, his crook by his side, his old dog stretched out beside him. They were both dead.

The little church was packed on the day of Jonah’s funeral. He had been well-liked by his neighbours. The sun shone brightly and a warm breeze blew through the trees as the cortege approached the grave, the freshly turned earth smelling rich and wholesome. 

After the coffin had been committed to the ground and the burial service was over the mourners turned to leave and each one of them noticed the two ravens on the roof of the church. As they watched, the great birds bowed and then took off to soar gracefully through the blue sky back to the moors.

Wednesday, 5 January 2011

ABC Wednesday Y is for Yan, Tan, Tethera

Yan, tan, tethera is a counting rhyme used by shepherds in different parts of England to count sheep. There are dialectic variations but the rhyming pattern remains consistent.

The Lincolshire version for numbers 1 to 20 runs Yan, Tan, Tethera, Pethera, Pimp, Sethera, Lethera, Hovera, Covera, Dik, Yan-a-dik, Tan-a-dik, Tethera-dik, Pethera-dik, Bumfit, Yan-a-bumfit, Tan-a-bumfit, Tethera-bumfit, Pethera-bumfit, Figgot.  It’s pleasing to feel these words roll off the tongue and good to know that English dialects and accents have not been completely homogenised.


You can read more about the origins and differences here.

I wonder how the shepherds involved in the following clip counted their many sheep?

Thank You to the Youthful Denise Nesbitt and her energetic team as they Yomp through the alphabet to host this weekly meme. Please click here to see more Ys.

Saturday, 16 January 2010

Camera Critters #93 In the kitchen

The thought of living on a farm appeals in a romantic sort of way. In my imagination the sun is always shining on healthy, clean animals in beautiful rural surroundings - no nasty slurry or fertiliser smells, no muddy yard full of milling cows desperate to be milked. The animals don't suffer from fly strike and live long and happy lives, dying peacefully in their sleep from old age when they can then be consumed (though they are rather tough!) The cockerel (or rooster or chanticleer) crows quietly at break of nine o'clock and the hens are never broody.

This farmyard scene is over the range.
We have our own farmyard in the kitchen and the animals are surprisingly cheap to keep, only requiring a wipe-over now and then!




Thank you to the organisers and hosts of this entertaining meme.
Please click here to see more Critters!

Tuesday, 7 April 2009

iPod

I've just watched three really good podcasts from 'bestofyoutube.com'

Episode 419 was 'Parrot Tricks' and featured a delightful and intelligent green parrot with a striking red beak. The next most entertaining one, Episode 421, was the 'Rapping Flight Attendant' from South West Airlines and if you've ever sat, numb with boredom, while the flight attendant goes through the standard instructions, you'll appreciate this.

By far the best, for this watcher anyway, was Episode 420 by 'Baaa-Studs 2009' presenting 'Extreme Shepherding' in 'Extreme Sheep LED Art'. It's an amazing, clever video involving white sheep, black sheep, sheep dogs, LED lights, wonderful choreography, music and, above all, some very skilled shepherds. Heart-warming and thoroughly enjoyable entertainment!